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A Novel, Eco-Friendly and Green Synthesis of Ppac-Zno and Ppac-Nzvi Nanocomposite Using Pomegranate Peel: Cephalexin Adsorption Experiments, Mechanisms, Isotherms and Kinetics Publisher



Rashtbari Y1, 2 ; Hazrati S1 ; Azari A3, 5 ; Afshin S1, 2 ; Fazlzadeh M1, 4, 5 ; Vosoughi M1
Authors
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Authors Affiliations
  1. 1. Department of Environmental Health Engineering, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran
  2. 2. Students Research Committee, Faculty of Health, Ardabil University of Medical Sciences, Ardabil, Iran
  3. 3. Department of Environmental Health Engineering, School of Public Health, Kashan University of Medical Sciences, Kashan, Iran
  4. 4. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Social Determinants of Health Research Center, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran

Source: Advanced Powder Technology Published:2020


Abstract

In the present work, powdered activated carbon coated by nanoparticles ZnO and nZVI was derived from pomegranate peel extracts and finally applied for removal of cephalexin (CEX (from aqueous solutions. This experimental research was conducted discontinuously. The effects of pH of solution, reaction time, PPAC-nZVI and PPAC-ZnO composites dose, and initial concentration of cephalexin and composite recovery on process efficiency were investigated. The removal efficiency in optimal conditions for cephalexin with PPAC-nZVI and PPAC-ZnO (CEX = 50 mg L−1, composite dose = 1.25 g L−1, reaction time = 45 min and pH = 5) was obtained 96.06% and 94.17%, respectively. The results of the study of isotherm and absorption kinetics for both composites showed that the absorption process follows Langmuir isotherm and pseudo second-order kinetics. The present study showed that the composites could be used as an effective and bio-friendly absorbent to remove cephalexin from aqueous solutions. © 2020 The Society of Powder Technology Japan
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